Number | Name | Date | Kind |
---|---|---|---|
1696332 | Sheehan | Dec 1928 | |
1875584 | Frede et al. | Sep 1932 | |
2052213 | Branstrator | Aug 1936 | |
3102613 | Johnston | Sep 1963 | |
3152667 | Johnston | Oct 1964 | |
3357371 | Gutridge | Dec 1967 | |
3420192 | Ellis | Jan 1969 | |
4091742 | Corani | May 1978 | |
4288957 | Meehan | Sep 1981 | |
4456413 | Pavlick | Jun 1984 | |
4686907 | Woollam et al. | Aug 1987 | |
4703699 | Hill | Nov 1987 | |
4771706 | Lindauer et al. | Sep 1988 | |
4782762 | Johnstone et al. | Nov 1988 | |
4862810 | Jamrozy et al. | Sep 1989 | |
4876968 | Lindauer et al. | Oct 1989 | |
4889055 | Jamrozy et al. | Dec 1989 | |
4949646 | Jamrozy et al. | Aug 1990 | |
4966082 | Takeichi et al. | Oct 1990 |
Number | Date | Country |
---|---|---|
0392828 | Oct 1990 | EPX |
Entry |
---|
"Honeycomb Wall Panels", Popular Mechanics, Jul. 1946, p. 147. |